What is the Least Common Multiple of 541 and 561?
Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.
Least common multiple (LCM) of 541 and 561 is 303501.
LCM(541,561) = 303501
Least Common Multiple of 541 and 561 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 541 and 561, than apply into the LCM equation.
GCF(541,561) = 1
LCM(541,561) = ( 541 × 561) / 1
LCM(541,561) = 303501 / 1
LCM(541,561) = 303501
Least Common Multiple (LCM) of 541 and 561 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 541 and 561. First we will calculate the prime factors of 541 and 561.
Prime Factorization of 541
Prime factors of 541 are 541. Prime factorization of 541 in exponential form is:
541 = 5411
Prime Factorization of 561
Prime factors of 561 are 3, 11, 17. Prime factorization of 561 in exponential form is:
561 = 31 × 111 × 171
Now multiplying the highest exponent prime factors to calculate the LCM of 541 and 561.
LCM(541,561) = 5411 × 31 × 111 × 171
LCM(541,561) = 303501
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